Spectrum analysers

Details Spectrum analysers Spectrum analysers

1979-11-16

1981-10-13

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

324 77K, 340702, 340716, G01R 2316

Patent

active

042950937

ABSTRACT:
A spectrum analyser uses a monochrome cathode ray tube to display frequency information. A color swtich incorporating a layer of liquid crystal material and colored polarized dichroic plates is positioned in front of the display screen of the cathode ray tube and by operating the color switch in an appropriate manner a colored display is produced.

REFERENCES:
patent: 3509453 (1970-04-01), Wilmotte
patent: 4117480 (1978-09-01), Boario
patent: 4198634 (1980-04-01), Jernigan

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